sell vs black marketeer

sell and black marketeer both are nouns.

Word	Noun	Adjective	Verb	Adverb
sell	Yes	No	Yes	No
black marketeer	Yes	No	Yes	No

As verbs, black marketeer is a hyponym of sell; that is, black marketeer is a word with a more specific, narrower meaning than sell:

Other hyponyms of sell include push, deal, pyramid, market, hawk, huckster, monger, peddle, pitch, vend.

sell (noun)	black marketeer (noun)
the activity of persuading someone to buy	someone who engages illegally in trade in scarce or controlled commodities

sell (verb)	black marketeer (verb)
persuade somebody to accept something	deal on the black market
exchange or deliver for money or its equivalent
do business; offer for sale as for one's livelihood
give up for a price or reward
deliver to an enemy by treachery
be sold at a certain price or in a certain way
be responsible for the sale of
be approved of or gain acceptance